Brush machine



arch 31, 1936.

A. c. GRISCOM BRUSH MACHINE Fild Aug. 20, 1931 3 Sheets-Sheet lINVENTOR.

ALFRED 6. 6R/6COM March 31, 1936. A. c. GRISCOM BRUSH MACHINE Filed Aug20, 1951 3 Sheets-Sheet 2 JN V EN TOR. A1. FRED CI 0mg COM rch 31, N36.A. c. eRlscm BRUSH MACHINE Filed Aug. 20, 1931 5 Sheets-Sheet 3 IN V ENTOR. A LFR ED C GR/scoM.

A TTORNE Y Patented Mar. 31, 1936 UNETED STATES PATENT OFFICE BRUSHMACHINE Application August 20, 1931, Serial No. 558,200

44 Claims.

This invention relates to new and useful improvements in means andmethods of making brushes.

An object of the invention is to provide improved brush making equipmentwhereby brushes may be produced more rapidly than has been possible withthe equipment heretofore in use.

Another object is to provide a machine particularly adapted for makingwhat is known as dairy brushes, although the machine is not necessarilylimited to use in making such brushes, and which is adapted to operatesubstantially automatically to secure bristles to a core in theformation of a brush.

A further object is to provide a brush making machine including meansfor continuously rotating a core and feeding it lengthwise and means forsecuring bristles to the core as it is rotated and fed.

Another object is to provide a brush making machine including means formixing bristles, as hair and brass, and means for securing the mixedbristles to a core.

An additional object is to provide an improved method of making brushes,the method including the step of continuously rotating a core andfeeding the core in one direction and securing bristles to the core asit is rotated and fed.

Other objects and advantages will become apparent as the descriptionproceeds and as the invention is practiced and it is therefore to beunderstood that the list of objects here given is by no means allinclusive but is given simply to outline some of the more apparentfeatures of the invention.

The invention also comprehends the novel combination, arrangement andconstruction of parts as hereinafter set forth. Further, it is to beunderstood that the invention is not limited to the construction andarrangement of parts as herein set forth but includes all suchvariations and modifications as fall within the spirit of the inventionor the scope of the appended claims to which claims reference should behad for a definition of the invention.

In the drawings:

Figure 1 is a front elevational view of the complete machine inaccordance with the present invention;

Fig. 2 is a plan View of the same;

Fig. 3 is a view partly in plan and partly in section and on an enlargedscale and showing the operation of applying bristles to a core;

Fig. 4 is a sectional View substantially along the line 44 of Fig. 3;

Fig. 5 is a view taken substantially along the line 55 of Fig. 3;

Fig. 6 is a side elevational view of the wire feeding mechanism;

Fig. 7 is a transverse sectional view of the.vertical bristle containerand supply means;

Fig. 8 is a View partly in elevation and partly in section and showingthe piston and cylinder construction and an automatic cut-ofi adapted tooperate to stop the machine when the supply of bristles is nearly usedup; and

Fig. 9 is a detail view showing the means for swinging the brush coremandrel toward and from the bristle applying means.

The means and the method of the present invention relates particularlyto and is herein disclosed as applied to the securing of bristles to aspirally grooved core by means of a strand of. wire. This type of brushis commonly employed by dairies for the cleaning of tubing used in thehandling of milk, as in the pasturizing of milk. However, it is to beunderstood that the invention is not limited to the making of brushesadapted to be used only about dairies since more or less rigid brushesmay be provided or manufactured in accordance with the invention and theuse to which the brushes, made in accordance with the invention, are putforms no particular part of the invention.

Referring in detail to the drawings the core to which bristles are to beapplied or secured by the machine of the present invention and accordingto the method of the present invention is indicated at I9. As hereinshown this core I0 is of metal and is hollow being rolled from a pieceof tubing and it is preferred, of course, that the core be ofnon-corrosive metal and the core is provided with a spiral groove IIrunning for substantially the length of the core although at itsrespective ends the core has non-grooved tubular end portions I2 and I3.(See Fig. 3.)

The grooved core IlJ might, of course, be of wood or other material, itbeing understood that the core is not necessarily of metal or of anyparticular metal. Further, the present invention does not have anyparticular relation to the manufacture of this core but relates to theapplication of bristles to the core in a manner to provide a brush.Before the core is brought to the present machine it is formed and whentubular and of metal as herein shown has secured in one of its ends, asfor example the end I3, a metal block I4 internally screw threaded as atl5. At its end I2 the core I0 is open for its entire diameter.

.in the end !2 of the core.

In the application of bristles to the core H], the latter is preferablycontinuously rotated and is also fed lengthwise in a direction to haveits entire spiral groove pass the feeding station or the point ofapplication of the bristles. For this reason the end I3 of the core isreceived in a chuck I5 and clamped whereby the core will rotate with thechuck and if desired the chuck may be provided with pins ll enteringnotches in the plug id to further establish a driving connection.

Extending through the chuck and rotatable therewith is a bar i8 whichbar also extends entirely through the core to project beyond the end l2thereof and disposed about this bar I8 is a sleeve or filler is of aninternaldiameter to snugly receive the bar and of an external diameterto be engaged by the bottom walls of thespiral groove H in a manner tobrace or reinforce the core. At its inner end this sleeve I9 abuts theblock M as at 23 and at itsouter end the sleeve is enlarged as at 2! soas to be snugly receivable On its outer end the bar l8 may be screwthreaded t0v receive a nut 22 whereby to clamp the sleeve I9 in place onthe bar and to secure the block l4 and the end l3 of the core in thechuck whereby the chuck, the bar l8, the sleeve l9 and the core l0rotate as a unit.

The chuck I6 is mounted on and turns with and is moved by a feed screw23 driven by a motor 23. Motor 24 is coupled to drive a shaft '25carrying a worm 26 and which shaft is mounted in suitable bearings in abracket 2'! secured .on a standard or table 28 supported as by means oflegs 29. the table 28.

Motor 24 is also mounted on Worm meshes with and drives -a worm gear 33mounted on a shaft 3i which shaft has bearing at one end in a bracket 32and ,at its other end in the bracket 27.

A small pinion or. gear 33 is arranged on the shaft 3! and this gear .33meshes with a relatively large gear 34 secured ,to the feed screw 23 andhaving a key -operating.in theslot or keyway 23a in the screw.

.A bracket 35 has one end portion 33 disposed on the shaft 3| so as tobe turnable thereon and at its end 37 this bracket is threaded andreceives the feed screw 23. Bracket 35 also has lateral extensions 38through which bolts 39 may pass to secure the bracket to similarextensions on .an arm 3.9 also disposed on the feed screw 23 but at theside of the gear 34 opposite that at which the end portion 37 of bracket35 is disposed. The feed screw may have threaded con- .nection witheither the portion 37.of the bracket 35 or the arm whereby as the screwis turned .on movement being imparted to the gear 314 the .screw will befed longitudinally so as to feed the core Ill in a lengthwise directionin addition to rotating the core.

Since the end portion of the bracket 35 is turnable on the shaft 3imeans are provided for holding the bracket in the desired positionrelative to the shaft. To this end a quadrant 4| is mounted on the table28 between the brackets 21 .and- 32 and is provided with an arcuatesurface having notches 42 and 43 each adapted to receive the lower endof a pin 45. Fig. 9 shows the parts .in the position occupied by themduring the filling of a brush core orduring the time that bristles arebeing applied to a core.

When the core is completely filled it will have been fed lengthwise byor past the filling station and in order that it may be more easilyremoved from the machine and without damage to the bristles it is swunglaterally away from the filling station. This is accomplished byelevating the pin 45 from the position shown in Fig. 9, that is out ofnotch 43, and then swinging the gear 34, feed screw 23 and parts carriedthereby laterally or outwardly, that is, toward the left as viewed inFig. 9 and locating the pin 45 in the notch 42. The purpose of thisarrangement will appear more fully as the description proceeds.

As before suggested bristles are secured to the core ill by means of awire and the mounting and feeding of this wire will now be described.The securing wire is indicated at 45 and is supplied from a spool llrotatably mounted on a bolt or pin 48 carried by the upper end portionof an upright 49 supported from the table 28. On leaving the spool 47the wire 46 is carried about a relatively small friction spool 59 andthen by an idler roll 5i to a peripherally toothed bristle feeding meansshown as a metering wheel 52 about the core of which the wire is twicepassed after which its end is secured to a brush core Ill. The end ofthe wire may be secured to the core H] in any suitable manner but Iprefer that it be secured as by pressing up a portion of the metal ofthe core between incisions and then passing the end of the wire aboutthe pressed up portion to anchor said end. Since the end of the wire issecured to the core the wire will be pulled from the spool as the coreis rotated and fed.

The idler roll 5| is pivotally mounted as at 53 to one end portion of alever 55 which lever is pivoted intermediate its ends as at 55 to oneend portion of a cross arm 55 secured to the upright 39 as by screws 5'!and carrying the small friction or tension spool before referred to. Acoil spring 58 is anchored at one end to a pin 49 carried by the crossarm and at its other end the said spring is secured to a pin or post 60carried by the lever 54 and acts to have the idler roll apply a tensionto the wire. The function of this lever will later be described more indetail but here it may be stated that the lever is used for the purposeof pulling a supply of wire from the supply spool 41 in order to enablethe operator to have sufiicient free wire available for anchorage to thecore.

Means is provided for constantly supplying bristles to the toothedbristle feeding means or metering wheel 52. The supply means includes areceptacle 5! which is somewhat wedge shaped in cross section as shownin Fig. 7 and which includes a rear wall 62 to which inclined side walls63 and 64 are secured as by means of machine screws 65. A front wall 55for the receptacle has a strap 61 secured thereto and at one end thisstrap is secured to a bracket 68 carried by the side wall'63, thepivotal connection being indicated at 59. At its other end the strap '61is bifurcated to receive a bolt 73 pivoted as at H and carrying a wingnut 72 adapted to be tightened to engage the strap 6'! and lock thefront side '55 of the receptacle in closed position as shown in Fig. 7

Operating in the receptacle M is a follower 13 carried at the upper endof a plunger or piston rod it, which piston rod extends into a cylinderl5 arranged below and in line with the receptacle 5!. Within thecylinder 15 the rod H5 carries a piston 76 comprising oppositelydisposed cup-like members El and 18 clamped between discs 19 may beoperated to put the pipe 8| into communication either with a branch 83or a branch 84. When the valve 82 is operated to pass fluid, as air,under pressure to the branch 83 the said fluid under pressure will enterthe upper portion of the cylinder 15 and force the piston 16 downwardlytherein so as to draw the follower to the bottom of the receptacle 6!.

Obviously, if the valve 82 is operated to place the line 8! incommunication with the branch 84 fluid under pressure will be admittedto the lower end of the cylinder i and engaging the under side of piston16 will force the same upwardly resulting in the follower 73 being moved.toward the upper end of the receptacle 6|. Therefore, bristles 85 inthe receptacle will be under pressure and will be closely packed andwill always be urged toward the upper end of the receptacle.

Convenient operating means is shown for controlling the valve and thismeans includes a hand lever 86 pivoted intermediate its ends as at 81and at one end pivotally connected with an end of a link 88 as at 89 andat its other end pivotally connected with an arm 99 of the valve 82 asat 9 l. Since the valve 82 is located under the table 28 and in the rearof the cylinder it will be obvious that the means just described enablesthe valve to be more conveniently operated or controlled.

From Fig. 4 it will be apparent that the upper end of the receptacle 6!is but partially closed by a head member or means 92, the said memberbeing open at its upper end and the toothed bristle feeding means 52being so disposed as to partially enter the receptacle through the means92. Since during the operation of the machine a continuous andpreferably constant pressure is kept on the piston 75 it will beapparent that a pressure is kept on the bristles 85 by the follower 13since through the medium of the rod M the piston and follower arerigidly connected. Therefore, there is a continuous urging of thebristles 85 toward the bristle feeding means or metering wheel 52.

The toothed bristle feeding means or metering wheel 52 includes a shaft93 having bearings in blocks 94 and 95 arranged at each side of the headmember 92 of the receptacle SI and on said shaft is mounted the feedingmeans per se which means includes a bobbin-like member including discsor disc-like members 96 and 91 toothed about their periphery anddisposed between inclined spacing members 98. It is between thedisc-like members 96 and 9? that the wire 46 is led and is twice wrappedabout the feeding means between said discs as clearly shown in Fig. 3.Therefore, as the core draws the Wire the metering wheel will be rotatedto feed the bristles. A gear 99 is secured to the shaft 93 at the outerside of the block 94 and the full function of this gear will laterappear.

When loading the machine, that is, when placing a corein the machine, alocking member or finger I90 pivoted to the block 94 as at Hill is swungto dispose its neb I92 between two of the teeth of the gear 99 so as tolock said gear and its shaft and the bristle feeding means againstrotation whereby to prevent feeding of bristles. Next, the lever 54 isoperated to press its wheel 5| against the wire 66 whereby to draw someof the wire off the supply spool 47, the free end of the wire being heldas by a pair of pliers. That is, the operation of the lever as suggestedresults in slack being left in the wire between the small spool 59 andthe metering wheel or bristle feeding means 52.

The wire must be pulled from the spool 4'! since its free end is held asby pliers or the like. The wire being slacked below the small spool 50its end beyond the feeding means 52 is grasped as by means of a pair ofpliers or the like and the wire pulled to dispose a portion of its freeend beyond the feeding means. This operation results in a sliding of thewire about the core of the feeding means since such means is heldagainst rotation by the locking piece I00 before referred to.

When suficient wire has been drawn beyond the feeding means the end ofthe wire is secured to a core which has been placed in the chuck or thewire may be secured to the core before the core is placed in the chuckand after the core is placed in the chuck the surplus wire may be drawnfrom the core and cut off. Next, the valve 82 is operated to bring aboutthe application of pressure to the bristles 85 and this will result inthe bristles being forced upwardly into the spaces between the teeth onthe peripheries of the discs 98 and 97 of the feeding means.

The motor 24 may then be started (the finger piece Hi9 having been movedaway from the gear 99 to engage the stop pin I44) and this will resultin the core I0 being rotated and fed lengthwise and as the core isrotated and fed the wire 46 will be drawn onto the core. Before themotor 24 is started a few bristles may be fed by hand to start thebrush. This is accomplished by rotating the hand wheel I03 on the outerend of shaft 93 carrying the metering wheel. This hand feeding ofbristles takes place without rotating the core from the motor and'thestart of the core may be well filled or loaded.

Movement of the wire will, of course, result in the feeding means ormetering wheel 52 being rotated and as the same rotates it will pick upbristles 85 from the upper portion of the receptacle 6i and carry themup under the wire 46 as clearly shown at I94 in Fig. 4. These bristlesextend beyond each side of the wire 46 and the wire will press thecentral portions of the bristles into the spiral groove of the core asclearly shown in Fig. 3.

As the bristles leave the receptacle they pass over a combined guide andguard I95 formed with the upper portion of the front member of the head92 and including wing-like portions I06 having a space or slot betweenthem. The wire 46 operates through this space between the portions I06and the upper inner sides of the wings or portions I06 tend to bend ordouble the bristles into a U-shape, the tension on the wire serving topull the wire down into the spiral groove in the core l0 and fold thebristles into a U-shape (see Fig. 4).

It will be understood that the size of the spaces between the teeth onthe discs 96 and 9? controls the amount of bristles carried out of thereceptacle or rather the rate at which bristles are carried out of thereceptacle and the proportion is preferably such that the foldedbristles together with the wire substantially fill the groove in thecore whereby when the brush is completed the bristles are quite rigidlyheld. In Fig. 4 the completed portion of the brush is shown in sectionfor about two-thirds of the distance about the brush, the wire 46 beingexposed for this dis-' tance and then a portion of the brush is shownlooking at the outer side of the bristles the wire being invisible andbeing disposed in the groove point remote from the place where theircentral :portion are secured in the groove. This is clearly illustratedin Fig. 3 where certain of the bristles immediately to the right of thefeeding means are shown as bent over and held over by engagement withthe outer surface of one of the winglike members I06 of the guide andguard means I05.

It sometimes happens that the tension on the wire is not suflicient tocause the wire to seat down tightly in the spiral groove II of the core.When this happens it is readily apparent in the brush since the bentover portions of the bristles are not disposed parallel but flare outfrom one another. These bristles, of course, are not tightly held and amanually operated means is provided for pressing the wire into thegroove when the tension on the wire is not sufficient to keep it in thegroove.

This means involves a lever IIl'I pivoted as at I08 and having anoff-set portion I09 carrying a bifurcated member HG between the arms ofwhich is rotatably mounted a grooved jacking 'wheel I I I as by means ofa bolt or bearing member H2. Pivotally connected with the lever I01 is alink H3 and secured to a shaft or rod H4 is a link H5, the ends of thelinks H3 and H5 being pivotally connected as at H6.

Also, secured to the rod H4 is an operating lever H1 and it will beapparent especially from an inspection of Fig. 6 that the links H3 andH5 form a toggle adapted to be operated by the lever HI. When the partsare in their full line position as shown in this figure the wheel [illwill be pressed against the wire 46 in a manner to press the wire towardthe bottom wall of the groove H of the core III. In Figs. 4 and 6 thewheel is shown as engaging the wire for this purpose and from aninspection of Fig. 6 it will be apparent that this pressure is appliedby forcing the lever I I! in the direction of the core. A reversemovement of the lever will move the parts into the dot and dash lineposition shown in Fig. 6 where they are out of the way.

A safety cut-01f means is provided for stopping the machine on thesupply of bristles in thereceptacle 6| running low. That is, thisautomatic cut-ofi means operates before the supply of bristles iscompletely exhausted. To this end in the line I I8 to the motor 24 froma suitable source of supply of electrical energy there is incorporatedany suitable switch H9 adapted to be controlled by lever I2Il through arod I2I The receptacle BI is held spaced above the cylinder I5 as bymeans of spacing members I 22 and the lever or arm I20'is arranged inthis space.

The rod I4 near its lower end is notched as at I23 and the arm I20 is sopositioned that its free end normally engages the rod I4 and will entersaid'notch on the piston rising a sufficient distance'to bring the notchopposite the arm. That is, when the supply of bristles in the receptacleBI is quite low the piston may move upwardly for substantially thelength of the cylinder I5 and his 'not until the piston has had.considerable movement that the notch comes opposite the arm.

However, the notch does come opposite the arm the switch I I9 andthereby open the circuit to the motor 24 and stop the machine.

In its upper surface the follower'13 is provided with a pair of spacedgrooves I24 and the receptacle 6| is in its walls provided with opening-I25 adapted to align with the grooves I24 when the follower has movedupwardly a distance sufficient to bring the notch I23-opposite the armDisposed on the frame of the machine so as tobe slidable through theopenings I25 of the receptacle 6| and through the grooves I24 in thefollower are a pair of pins I26. When the machine stops these pins arepushed inwardly so as to be disposed under the bristles remaining in thereceptacle and hold them in place against the feeding means. Next, valve82 is operated to force the piston 16 downwardly and this will result inthe follower 13 moving downwardly, the pins I26 supporting the remainingbristles 85.

The front 66 of the receptacle 6| may now be open and an additionalsupply of bristles disposed in the receptacle on top of the follower 13.The receptacle may then be closed and the position of the valve 82reversed so as to force the follower upwardly in the receptacle to crowdthe'new supply of bristles against the underside of the pins I26. Whenthe pins are now with drawn the new supply of bristles will be forcedagainst the bristles which remain in the receptacle and the machine maybe started again. In connection with this mechanism just described it ispointed out that if a brush has been started and the supply of bristlesfail all the work done on the brush will be wasted unless the feedingmechanism can be held fully supplied with bristles.

That is, assuming that all the bristles in the receptacle were used anda core in the chuck I4 but partly filled the work which had been donewould be wasted since near the starting point the brush would beproperly filled and as the supply of bristles became less but a fewbristles would be applied to the core and if the machine has been leftrunning the wire will simply be wound in the groove II without securingany bristles in place. Since the entire operation is stopped with thepresent mechanism before the supply of bristles is exhausted it will'beapparent that when the supply in the receptacle has been replenished abrush which was partially completed when the automatic cut-off went intooperation may be completed and that all parts of the brush will beproperly filled.

It is believed that from the foregoing description the operation ofmaking a brush on the machine and in accordance with one method of thepresent invention will be clear. However, it is desired to point outthat when a core has been filled the feed of bristles is stopped andthis stopping may take place automatically as by means of a cam at eachend of the feed screw 23 to open a'switch to the motor 24 when the feedscrew has fed the core the desired distance first in one direction andthen in the opposite direction. The pin 45 is then raised to swing thefilled core away from the feeding means and expose a length of wirebetween the feeding means and the brush. The wire is secured to the coreso as not to lose tension when out and after it is cut itsend is moresecurely and permanently anchored to the core in any suitable the wirewas released the wire would loosen on the core and release the bristles.

It will be understood that the tensioning means including the roller IIIwill be moved to an out of the way position as shown by the dot and dashlines in Fig. 6, before the pin 45 is operated to swing the core awayfrom the feed means. The chuck I6 may now be opened and the nut 22removed to permit the sleeve I9 and the core II! to be removed from themachine. Since these parts must be slid off the bar I8 it will beobvious that the brush must be swung laterally away from the feedingmechanism since otherwise its bristles would engage the guide I85,particularly the wing-like portions I88 thereof during the said slidingmovement of the brush off the bar I3.

The receptacle 6! may be loaded with any kind of bristles or bristlematerial, as hairs, brass or the like. Further, the receptacle may beloaded with but one material or with a mixture of materials, it beingunderstood that the feeding means may if desired be modified to adapt itfor use with particular types or kinds of materials.

The machine also includes means for mixing the bristles that are appliedto the core I0. Thatis, the bristles applied to the core may be amixture of hair and brass or German silver or other materials as desiredor the bristles may be all of one kind in which event it is best to feedthem all from the receptacle GI. When a mixture is desired a bracketIZ'I is secured in place as shown in Fig. 5 and this bracket includes agear or carries a gear I28 on a short shaft I29 and the gear I28 mesheswith the gear 99 and with a gear I30 on a shaft I3I mounted in theblocks 94 and 95 above referred to. The shaft I3I carries a bristlefeeding means comprising spaced discs I32 each of which is notched ortoothed in its periphery and these discs are so spaced apart and of suchdiameter as to over-lap the discs 98 and 91 at their outer sides asclearly shown in Figs. 2, 3 and 4.

The discs I32 are arranged to take bristles I33 from a receptacle I34which is slightly open at its forward end and which is arrangedsubstantially horizontally as shown. Within the receptacle I34 is afollower I35 connected by a rod I35 with a piston I31 in a cylinder I38.The cylinder I38 has inlets I39 and I48 whereby compressed air or otherfluid under pressure may be supplied to the cylinder at either side ofthe piston so as to operate the same to move the follower. When bristlesare being used from the receptacle I34 air or other fluid under pressureis being supp-lied to the cylinder I38 through the inlet I39 whereby tokeep the follower against the bristles I33 and constantly urge themtoward the feeding disc I32. The feed and the means for accomplishingthe feed of the bristles I33 toward the discs I32 may be the same orsubstantially the same as that previously described in connection withthe feed of the bristles toward the discs 96 and 91.

If the bristles 85 in receptacle 6| are hair then the bristle I33 inreceptacle I34 may be of German silver or brass or the like. The spacebetween the teeth of the discs I32 are such as to receive about one-halfof the material which will be received in the spaces between therespective teeth of the discs and 91. Since the discs I32 overlap thediscs 93 and 9'! at the point I II which is above the bristles 85 itwill be seen that the teeth of discs 88 and 91 will be partially filledwith the bristles I33 before the discs enter into the receptacle 5i topick up some of the bristles 85.

Therefore, a mixture of bristles will be carried by the discs 95 and 81toward the core I0 and secured to the core by the wire 46. Since thediscs I32 are driven by the gearing described it will be apparent thatthese discs rotate with the discs 35 and 91. A strap member I42 issecured to the receptacle I34 as by a screw I43 and this strap memberinclines downwardly across the open end of the receptacle I3 and betweenthe discs I32 in a manner to prevent the bristles I33 being forced outof the receptacle on air being supplied to the cylinder I38 through theinlet I39.

It is to be understood that the capacity of the teeth of discs I32 ascompared with the capacity of the teeth of discs 96 and 91 may be variedto suit various requirements. That is, more or less of the bristles I33may be fed to increase or decrease the proportion as between bristlesI33 and 85. when a mixture is being used, the wire is secured to thecore in the usual manner and the lever 54 may be used to draw ofi" somewire from the spool 47 after the gear 99 is locked by the finger pieceI00 as previously described, the finger piece being moved to inoperativeposition as against the stop pin I 44 during the actual operation of themachine either when the machine is being used to fill a core with onekind of bristles or with a mixture.

Having thus described the invention, what is claimed is:

1. In a machine for filling spirally grooved brush cores, means forrotating a spirally grooved brush core, rotatable means for feedingbristles to the core, means for causing relative movement between thecore and feeding means in a direction lengthwise of the core, a wiresecured at one When bristles I33 are being used, that is end to the coreand fed by rotation of the core and serving to draw the intermediateportions of the bristles into the spiral groove of the core to securethe bristles to the core, and means whereby said wire rotates saidbristle feeding means.

2. In a machine for filling spirally grooved brush cores, said machineincluding a filling station, a receptacle having a discharge at saidstation, a metering wheel at said station, means for rotating a brushcore, means for causing relative movement between the core and meteringwheel in a direction lengthwise of the core, said metering wheelarranged to take bristles from the discharge of said receptacle anddeliver the bristles to the core, and means to drive the metering wheel.

3. In a machine for filling brush cores, a holder for a supply of wire,means for rotating a brush core, means for feeding bristles to the core,means for causing relative movement between the core and feeding meansin a direction lengthwise of the core, said feeding means including ametering wheel, and the wire from, said holder adapted to be passedabout the metering wheel and secured to the core whereby as the core isrotated the wire is drawn off the metering wheel and rotates the same tocause it to feed bristles and as F the wire is drawn onto the core itsecures the said bristles to the core.

4. In a bristle feeding means for a brush core filling machine, areceptacle for bristles, a follower in the receptacle, cylinder andpiston means to actuate the follower to cause it to press the bristlestoward one end of the receptacle, and a bristle feeding means comprisinga metering wheel arranged at said end of the receptacle and againstwhich the bristles are pressed.

5. In a machine for filling spirally grooved brush cores, a base, a workholder on the base, means for rotating the work holder to rotate a core,a receptacle having a discharge opening, a metering wheel arranged totake bristles from said receptacle through such opening and deliver thebristles to said core, means for causing relative movement between themetering wheel and the core in a direction lengthwise of the core, afollower in the receptacle, and means to operate the follower to have itcontinually press the bristles in the direction of said dischargeopening during the operation of filling a brush core.

6. In a machine for filling spirally grooved brush cores, a base, a workholder on the base, means for rotating the work holder to rotate a core,a bristle feeding means comprising a metering wheel adapted to feedbristles to the core, means for causing relative movement between thefeeding means and the core in a direction lengthwise of the latter,means for supplying bristles to the metering wheel, a holder on saidmachine, a supply of wire supported by said holder, said wire carriedabout a portion of the bristle feeding nreans and secured to the core atone end of the groove thereof whereby as the core is rotated it willWind the wire in the groove of the core and draw the wire on the bristlefeeding means to rotate the latter and feed the bristles to the core,and said bristle feeding means feeding bristles to the core beneath thewire whereby portions of the bristles are carried into the groove of thecore and secured to the core by the wire.

'7. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder to rotate acore, a receptacle having a. discharge opening, a metering wheelarranged to take bristles from said receptacle through such opening anddeliver the bristles to said core, means for causing relative movementbetween the metering wheel and the core in a direction lengthwise of thecore, a follower in the receptacle, means to operate the follower tohave it continually press the bristles in the direction of the dischargeopening during the operation of filling a brush core, a holder on saidmachine, a supply of wire supported by said holder, said wire secured tothe core at one end of the groove thereof whereby as the core is rotatedit will wind the wire in the groove of the core, and said metering wheelfeeding said bristles to the core beneath the wire whereby portions ofthe bristles are carried into the groove of the core and secured to thecore by the wire.

8. In a machine for filling spirally grooved brush cores, a base, a workholder on the base, means for rotating the work holder whereby to rotatea core, a bristle feeding means comprising a metering wheel adapted tofeed bristles to the core, means for causing relative movement betweenthe feeding means and core in a direction lengthwise of the latter,means for supplying bristles to the metering wheel, said means includinga receptacle having a discharge end positioned to supply bristles to themetering wheel, a follower in the receptacle, means to operate thefollower to have it constantly press the bristles in the direction ofthe metering wheel during the operation of filling a brush core, aholder on said machine, a supply of wire supported by said holder, saidwire carried about the portion of the bristle feeding means and securedto the core at one end of the groove thereof whereby as the core isrotated it will wind the wire in the groove of the core and draw thewire on the bristle feeding means to rotate the latter and feed thebristles to the core, and said bristle feeding means feeding bristles tothe core beneath the wire whereby portions of the bristles are carriedinto the groove of the core and secured to the core by the wire.

9. In a machine for filling spirally grooved brush cores, a base, a workholder on the base, means for rotating the work holder to rotate a core,a bristle feeding means comprising a metering wheel to feed bristles tothe core, means for causing relative movement between the feeding meansand core in a direction lengthwise of the latter, means for supplyingbristles to the metering wheel, a holder'on said machine, a supply ofwire supported by said holder, said wire carried about a portion of thebristle feeding means and secured to the core at one end of the groovethereof, means for tensioning the wire wherebyas the core is rotated itwill wind the wire in the groove of the core and draw the wire on thebristle feeding means to rotate the latter and feed bristles to thecore, and said bristle feeding means feeding bristles to the corebeneath the wire whereby portions of the bristles are carried into thegroove of the core and the bristles secured to the core by the wire.

10. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder to rotate acore, a bristle feeding means to feed bristles to the core, means forcausing relative movement between the feeding means and core in adirection lengthwise of the latter, a holder on said machine, a supplyof wire supported by said holder, means whereby as the core is rotatedthe wire is wound into the groove of the core, said bristle feedingmeans feeding bristles to the core with portions of the bristles underthe wire whereby said portions of the bristles may be carried into thegroove of the core by the wire and the bristles secured to the core bythe wire, and a manually operable jacking wheel adapted. to be operatedto engage said wire and press the same inwardly of the groove.

11. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder to rotate acore, a bristle feeding means to feed bristles to the core, means forcausing relative movement between the feeding means and core in adirection lengthwise of the latter, means for supplying'bristles to thefeeding means, said means including a receptacle having a dischargeopening positioned to deliver bristles to the bristle feeding means, afollower in the receptacle, means to operate the follower to have itpress the bristles in the direction of the bristle feeding means,automatic cut-off means for stopping the machine when the supply ofbristles in the receptacle is low, said follower having a groove in itsbristle engaging surface, a pin adapted to be passed through said groovebeneath the bristles to support the same under pressure while thefollower is withdrawn to permit of the insertion of an additional supplyof bristles into the receptacle between the pin and follower, and saidpin adapted to be withdrawn when the new sunply of bristles is pressedagainst the pin by the follower.

12. In a machine for filling spirally grooved brush cores, a base, awork holder, a bracket mounting the work holder on the base, means forrotating the work holder to rotate a core, a bristle feeding means. tofeed bristles to the core, means for causing relative movement betweenthe feeding means and core in a direction lengthwise of the latter,means pivotally mounting the bracket on the base whereby the bracket hastwo positions in one of which the core is disposed at the bristlefeeding means and in the other of which the core is disposed laterallyof the bristle feeding means, and means to secure the bracket in each ofsaid positions.

13. In a machine for filling brush cores, a support for a hollowspirally grooved core, said support including a chuck engaging one endof the core for rotating the same, means extending outwardly from thechuck and rotatable therewith and disposed within the core, and saidmeans being of a diameter to be engaged by the inner wall of the spiralgroove of the core whereby to support the core and brace the same.

14. In a machine for filling a brush core with a mixture of bristles,means for rotating a core, means for feeding a mixture of bristles tothe core, said last means including a pair of receptacles each adaptedto receive different kinds of bristles, a metering wheel associated withone of said receptacles and adapted to take bristles from the same anddeliver the bristles to the core, a metering wheel associated with theother of said receptacles and adapted to deliver bristles therefrom tothe first metering wheel, said second metering wheel being of lesscapacity than the first metering wheel and arranged to deliver bristlesto the first metering wheel in advance of the point where the firstmetering wheel receives bristles from its receptacle, means to drive thefirst metering wheel, and means whereby movement of the first meteringwheel is imparted tothe second metering wheel.

15. In a machine for filling a brush core with bristles, means forrotating a core, means for feeding bristles to the core as it isrotated, said last means including a receptacle, a metering wheelassociated with the receptacle and mounted to take bristles from thesame and deliver the bristles to the core, and means whereby themetering wheel is operated in synchronism with the movement of the core.

16. In a machine for filling a brush core with a mixture of bristles,means for rotating a core, means for feeding a mixture of bristles tothe core, said last means including a pair of receptacles each adaptedto receive a different kind of bristle, a metering wheel associated withone of said receptacles and adapted to take bristles from the same anddeliver the bristles to the core, a metering wheel associated with theother of said receptacles and adapted to deliver bristles therefrom tothe first metering wheel, and means within the respective receptaclesand operating continuously during the filling of a brush core to pressthe bristles in the receptacles toward the respective metering Wheelsand into the spaces between the teeth of the wheels.

17. In a machine for filling spirally grooved brush cores, a holder fora supply of wire, means for rotating a spirally grooved brush core,means for feeding bristles to the core, means for causing relativemovement between the feeding means and core in a direction lengthwise ofthe latter,

said feeding means including a metering wheel, the wire from said holderhaving one end secured to the core whereby as the core is rotated thewire is drawn into the spiral groove of the core, and said wire betweenthe holder and the core adapted to drive the metering wheel as the wireis drawn by the core whereby to feed bristles to the core with theintermediate portions of the bristles disposed under the wire wherebythe bristles will have their intermediate portions drawn into the groovein the core and will be secured to the core by the wire.

18. In a bristle feeding means for a brush core filling machine, areceptacle for bristles, a metering wheel partially entering one end ofsaid receptacle, means whereby said wheel is rotated, a follower in thereceptacle, and means including a cylinder and piston construction toactuate the follower to cause it to press the bristles toward andagainst the metering wheel.

19. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder and movingit to rotate a core and feed the core lengthwise,

the upper end of said receptacle as the core is moved past the fillingstation, and said bristle feeding means including a metering wheelcomprising a disc-like member toothed in its periphery and partiallyentering said receptacle.

20. In a machine for filling brush core, a base, a work holder on thebase, means for rotating the work holder and moving it to rotate a coreand feed the core lengthwise, said machine including a filling stationpast which the core or work is moved, a vertically disposed receptaclefor bristles at said station, a bristle feeding means partially enteringthe upper end of said receptacle for feeding bristles therefrom to thecore as the core is moved past the filling station, a guide memberbetween the bristle feeding means and the core,

and said member acting to guide the bristles from the feeding means tothe core.

21. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder to rotate acore, a bristle feeding means to feed bristles to the core, means forcausing relative movement between the feeding means and core in adirection lengthwise of the latter, means for supplying bristles to thefeeding means, said means including a vertically disposed receptacle,said bristle feeding means partially entering the upper end of saidreceptacle and carrying bristles therefrom, a follower in thereceptacle, and means to actuate the follower to have it press thebristles in the direction of the bristle feeding means.

22. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder to rotate acore, a bristle feeding means comprising a metering wheel to feedbristles to the core, means for causing relative movement between thefeeding means and core in a direction lengthwise of the latter, meansfor supplying bristles to the metering wheel, said means including areceptacle having a discharge end positioned to supply bristles to themetering wheel, a follower in the receptacle, means to operate thefollower to have it press the bristles in the direction of the meteringwheel during the operation of filling a brush core, and said meansincluding a piston and a cylinder and means to apply a continuouspressure to the follower.

23: In a machine for filling spirally grooved brushcores, a base, a workholder on the base, means for rotating the work holder to rotate acore,- a bristle feeding means comprising a meteringwheel to feedbristles to the core, means for causing relative movement between thefeeding means and core in a direction lengthwise of the lattermeans forsupplying bristles to the metering wheel, a holder on said machine,a-supplyof wire supported by said holder, said wire secured to the coreat one end of the groove thereof whereby-as the core is rotated it willwind the wire in the groove of the. core, and said metering wheelfeeding:bristles to the core beneaththe wire whereby portions of thebristles are carried into the groove of the core and the bristles-aresecured to the core by theWire.

24. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder to rotate acore, bristle feeding meanscomprising a metering wheel to feed bristlesto the core, meansfor causing relative movement between the feedingmeans and core in a direction lengthwise of. the latter, means forsupplying bristles to the metering wheel, said. means including areceptacle having discharge end positioned to supply. bristles to themetering wheel, a followerin the receptacle, means to operate thefollower. to have it press the bristles in the direction of the meteringwheel, said means includinga piston, ,acylinder in which the pistonoperates, andmeans to supply a fluid under pressureto the cylinder.andat. one side of the piston wherebytocause the follower-to exertacontinuous pressure on the bristles in thereceptacle during theoperation of filling a core, a holder on said machinea supply. ofwiresupported by said holder, said wire carried about a portion of thebristle feeding means and secured to the core at one. end of. the groovethereof whereby as the core is rotated itwill wind the wirein-the grooveofthe core and draw the wire on the bristle feeding means torotate the:latter and feedbristles to the core, and said bristle feeding meansfeeding. bristles t-othe core withethe intermediate portions of thebristles under the wire whereby said intermediate portions of thebristles are carried into the groove-of the core and the bristlesseouredto the core.

25. Ina machine for filling spirally grooved brush. cores, 2. base, aworkholcler on the base, means for rotating the workholder to rotate acore, bristle feeding means comprisingametering wheel tofeedbristlestothe core, means for causing relative. movement. between thefeedingmeans and core in a direction lengthwise of thelatter, means for,supplying bristles to the metering wheel, said means includingareceptacle having a discharge. end positioned to supply bristles to themetering wheel, a follower inv the receptacle, meansto operate the.follower tohave it press the bristles in. the, direction of themetering'wheel, said means including a piston, a cylinder in which thepiston-operates, andmeans to supply afiuid under. pressure to thecylinder and at oneside ofthe, piston whereby to cause the follower toexert acontinuous pressure on thebristles in. the receptacle during theoperationv of. filling a core, a holderonsaid machine, asupply of wiresupported by said'holder, said wire secured to .the core at one endofthegroove. thereof, whereby as the core-is rotated it will windv thewire in thegroove of the core,, and, said bristle feeding means, feedingbristles tothe-corebeneath the-wire whereby portions of the bristles arecarried into the groove of the core and secured-to the core by the wire.

26. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder to rotate acore, bristle feeding means comprising a metering Wheel to feed bristlesto the core, means forcausing relative movement between the feedingmeans and core in a direction lengthwise of the latter, means forsupplying bristles to the metering wheel, a holder on said-machine, asupply of wire supported by said holder, said wire secured to the coreat one end of the groovethereof, means for tensioning said wire wherebyas the core is rotated the wire will be wound into the groove of thecore, and said metering wheel feeding bristles to the core beneath thewire whereby portions of the bristles: are carried into the groove ofthecore and the bristles are secured to the core by the wire.

2'7. In a machine for filling spirally grooved brush cores, abase, awork holder on the base, meansfor rotating the work holder to rotate acore, bristle feeding means comprising a metering wheel to feedbristlesto the core, means for causing relative movement between the feedingmeans andcore in a direction lengthwise of the latter, means forsupplying bristles to the metering wheel, a holder on said machine, asupply of wire supported by said holder, means whereby as the coreis'rotated the wire iswound into the'groove ofthe core, and saidmetering wheel feeding bristles to the'core with portions of thebristles under the wire whereby said portions of the bristles arecarried into the groove of the core and the bristles secured to thecoreby the wire.

28. In a machine for filling spirally grooved brushcores, a base, a workholder on the base, means forrotating the work holder to rotate .a.core, a bristle feeding means to feed bristles to-the core, means forcausing relative movementbetween the feeding means and core in adirection lengthwiseof' the latter, a holder on said machine, a supplyof wire supported by said holder, means-wherebyas' the core isrotatedthe wire is wound-into thegroove of the core, means fortensioning saidwire, and said bristle feeding means feeding-bristlestothe oorewith portions of the bristles under thewire whereby'saidportions of the bristlesare carried into the groove ofthe core andthe-bristles secured to thecore by'the wire.

29. In a machine for filling spirally grooved brushcores, a base, a workholder on the base, means for rotating the work holder to rotate a core,a bristle feeding-means to feed bristles to the core, means for'causingrelative movement betweenthe feeding means and core in a directionlengthwise of the latter, a holder on said machine, a supply of wiresupported by said holder, means whereby as the core is rotated the wireis wound into the groove of the core, means for tensioning-the wire,said bristle feeding means feeding bristles to the core with portions ofthe bristles under the wire whereby said portions of the bristles may becarried into the groove'of the core by the wire and the bristles securedto the core by the wire, and a manually operable jacking wheel adaptedto be operated to engage said wire and assist the tensioning means bypressing the wire inwardly of the groove.

30. In a machine for filling spirally grooved brush cores, a workholder, means for rotating the Work holder to rotate a core, a bristlefeeding means tofeed bristles to the core, means for causing relativemovement between the feeding means and core in a direction lengthwise ofthe latter, said bristle feeding means including a metering wheel, meansfor supplying bristles to the metering wheel, said means including areceptacle having a discharge opening positioned to deliver bristles tothe metering wheel, a follower in the receptacle, means to operate thefollower to have it continuously press the bristles in the direction ofthe bristle feeding means during the operation of filling a brush core,said means for operating the follower including a cylinder and a pistonand means for supplying a fluid under pressure to the cylinder,automatic cut-off means for stopping the machine when the supply ofbristles in the receptacle is low, said follower having a pair of spacedgrooves in its bristle engaging surface, a pair of pins adapted to bepassed through said grooves beneath the bristles to support the sameunder pressure while the follower is withdrawn from the bristles topermit of the insertion of an additional supply of bristles into thereceptacle between the pins and the follower, and said pins adapted tobe withdrawn when the additional supply of bristles is pressed againstthe pins by the follower.

31. In a machine for filling spirally grooved brush cores, a base, awork holder, means mounting the work holder on the base, means forrotating the work holder to rotate a core, a bristle feeding means tofeed bristles to the core, means for causing relative movement betweenthe feeding means and core in a direction lengthwise of the latter, andsaid means mounting the work holder being so mounted that it may bemoved to swing the work holder and carry a filled brush core away fromthe bristle feeding means.

32. In a machine for filling spirally grooved brush cores, a base, awork holder, a bracket mounting the work holder on the base, means forrotating the work holder to rotate a core, a bristle feeding means tofeed bristles to the core, means for causing relative movement betweenthe feeding means and core in a direction lengthwise of the latter, andmeans pivotally mounting the bracket on the base whereby the bracket maybe moved to dispose a filled brush core laterally of the bristle feedingmeans.

33. In a machine for filling brush cores, a support for a hollowspirally grooved core, said support including a chuck for rotating thecore, and an externally smooth means passing through the core andengaged only by the inner wall of the spiral groove of the core wherebyto support and brace the core and to be readily insertable into andremovable from the core.

34. In a machine for filling a brush core with a mixture of bristles,means for rotating a core, means for feeding of mixture of bristles tothe core, means for causing relative movement between the feeding meansand core in a direction lengthwiseof the latter, said feeding meansincluding a pair of receptacles each adapted to receive different kindsof bristles, a metering wheel associated with one of said receptaclesand adapted to take bristles from the same and deliver the bristles tothe core, a metering wheel associated with the other of said receptaclesand adapted to deliver bristles therefrom to the first metering wheel,and said second metering wheel being of less capacity than the firstmetering wheel and arranged to deliver bristles to the first meteringwheel in advance of the point where the first metering wheel receivesbristles from its receptacle.

35. In a machine for filling a brush core with a mixture of bristles,means for rotating a core, means for feeding a mixture of bristles tothe core, said last means including a pair of receptacles and a meteringwheel for each receptacle, and said metering wheels arranged adjacentone another whereby one wheel delivers to the other and the otherdelivers to the core.

36. In a machine for filling a brush core with bristles, said machineincluding a filling station, means for rotating and feeding a core pastsaid station, means for feeding bristles to the core at the station,said last means including a receptacle, a metering wheel associated withthe receptacle and adapted to take bristles from the same and deliverthe bristles to the core, a follower in the receptacle, and fluidpressure operated means forcing the follower against the bristles tourge the latter against said metering wheel.

37. In a machine for filling a brush core with bristles, said machineincluding a filling station, means for feeding a core past said station,means for feeding bristles to the core at the station, said last meansincluding a receptacle, a metering wheel associated with the receptacleand adapted to take bristles from the same and deliver the bristles tothe core, and said metering wheel including a pair of spacedperipherally toothed disc-like members.

38. In a machine for filling a brush core with bristles, means forrotating a core, means for feeding bristles to the core, means forcausing relative movement between the feeding means and core in adirection lengthwise of the latter, said feeding means including areceptacle, a metering wheel associated with the receptacle and adaptedto take bristles from the same and deliver the bristles to the core, andfluid pressure operated means. within the receptacle and operatingcontinuously during the filling of a brush core to press the bristlestoward the metering wheel.

39. In a machine for filling a brush core with bristles, means forrotating a core, means for feeding bristles to the core, means forcausing relative movement between the feeding means and core in adirection lengthwise of the latter, said feeding means including avertically disposed receptacle, a metering wheel associated with thereceptacle and adapted to take bristles from the upper end of the sameand deliver the bristles to the core, said metering wheel including apair of spaced rigidly connected peripherally toothed disk-like members,and means within the receptacle and operating continuously during thefilling of a brush core to press the bristles upward toward the meteringwheel and into the spaces between the teeth of the wheel.

40. In a machine for filling a brush core with a mixture of bristles,means for rotating a core, means for feeding a mixture of bristles tothe core, means for causing a relative movement between the feedingmeans and core in a direction lengthwise of the latter, said feedingmeans including a pair of receptacles each adapted to receive adifferent kind of bristle, a metering wheel associated with one of saidreceptacles and adapted to take bristles from the same and deliver thebristles to the core, a metering wheel associated with the other of saidreceptacles and adapted to deliver bristles therefrom to the firstmetering wheel, said second metering wheel being of less capacity thanthe first metering wheel and arranged to deliver bristles to the firstmetering wheel in advance of the point where the first metering wheelreceives bristles from its receptacle, means within the respectivereceptacles and operating continuously during the filling of a brushcore to press the bristles in the receptacles toward the respectivemetering wheels, means to drive the first metering wheel, and meanswhereby movement of the first metering wheel is imparted to the secondmetering wheel.

41. In a machine for filling a brush core with a mixture of bristles,said machine including a filling station, means for feeding a core pastsaid station, means for feeding a mixture of bristles to the core at thestation, said last means including a pair of receptacles each adapted toreceive a different kind of bristle, a metering wheel associated withone of said receptacles and adapted to take bristles from the same anddeliver the bristles to the core, a metering wheel associated with theother of said receptacles and adapted to deliver bristles therefrom tothe first metering wheel, said second metering wheel being of lesscapacity than the first metering wheel and arranged to deliver bristlesto the first metering wheel in advance of the point where the firstmetering wheel receives bristles from its receptacle, means to drive thefirst metering wheel, and means whereby movement of the first meteringwheel is imparted to the second metering wheel.

42. In a machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder and movingit to rotate a core and feed the core lengthwise, said machine includinga filling station past which the core or work is moved, a bristlefeeding means comprising a metering wheel at said station and adapted tofeed bristles to the core as the core is moved past the filling station,said metering wheel comprising a peripherally toothed disc-like member,means for supplying bristles to the metering wheel, said means includinga receptacle having its discharge end positioned to supply bristles tothe metering wheel, a follower in the receptacle, means to operate thefollower to have it press the bristles in the direction of the meteringwheel, said means including a cylinder and piston and means to apply acontinuous pressure to the piston during the operation of filling abrush core, a holder on said machine, a supply of wire supported by saidholder, said wire carried about a portion of the bristle feeding meansand secured to the core at one end of the groove thereof whereby as thecore is rotated and fed it will wind the wire in the groove of the coreand draw the wire on the bristle feeding means to rotate the meteringwheel and feed bristles to the core, said bristle feeding means feedingbristles to the core with the intermediate portions of the bristlesunder the wire whereby said intermediate portions of the bristles arecarried into the groove of the core and the bristles secured to the coreby the I 7 wire, tensioning means acting on the wire before it is passedabout the bristle feeding means whereby to maintain the wire taut andcause the same to rotate the bristle feeding means and draw into thegroove of the core, a jacking wheel, lever means to operate said wheelto press the same against a wire and press the wire tight into thegroove in the core, automatic cut-off means for stopping the machinewhen the supply of bristles in the receptacle is low, said followerhaving grooves in its bristle engagingsurface, pins adapted to be passedthrough said grooves beneath the bristles to support the same underpressure while the follower is withdrawn to permit the insertion ofadditional bristles into the receptacle between the pins and follower,said pins adapted to be withdrawn when the new supply of bristles ispressed against them by the follower, and means mounting the core andwork holder whereby the core may be moved away from the bristle meanswhen the core is filled and before the core is removed from the workholder.

43. In a, machine for filling spirally grooved brush cores, a base, awork holder on the base, means for rotating the work holder to rotate acore, means to feed bristles to the core, means for causing relativemovement between the feeding means and the core in a directionlengthwise of the latter, means for supplying bristles to the feedingmeans, said last means including a receptacle having a discharge openingpositioned to deliver bristles to the feeding means, a follower in thereceptacle, means to operate the follower to have it press the bristlesin the direction of the bristle feeding means, and automatic cut-offmeans for stopping the machine when the supply of bristles in thereceptacle is low.

44. In a machine for filling brush cores, a base, a work holder on thebase, means for rotating the work holder to rotate a core, means forfeeding bristles to the core, means for causing relative movementbetween the feeding means and the core in a direction lengthwise of thelatter, means for supplying bristles to the feeding means, said lastmeans including a receptacle having a discharge opening positioned todeliver bristles to the feeding means, a follower in the receptacle,means to operate the follower to have it press the bristles in thedirection of the bristle feeding means, said follower having a groove inits bristle engaging surface, means adapted to be passed through saidgroove beneath the bristles to support the same under pressure while thefollower is withdrawn to permit of the insertion of an additional supplyof bristles into the receptacle between the means and. follower, andsaid means adapted to be withdrawn when the new supply of bristles ispressed against the means by the follower.

ALFRED C. GRISCOM.

